git-pw: Print the correct revision when applying with --revision

When running "git pw apply --revision N SERIES_ID" it always says
that it applies the newest revision even though it does the correct
thing - it applies the requested one.

This patch fixes the logic to print the correct revision.

This fixes #22

Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
1 job for master in 2 minutes and 6 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #1024408
test

00:02:06